Fabrication of N-doped carbon-coated Li^sub 4^Ti^sub 5-x^Co^sub x^O^sub 12^ anode for lithium-ion batteries

In this work, the Co2+-ion doping and N-doped carbon coating are adopted to improve the intrinsic and apparent electronic conductivities of Li4Ti5O12. This co-modified composite is fabricated through a ball-milling process followed by one-step solid-state reaction. XRD results demonstrate that the d...

Full description

Saved in:
Bibliographic Details
Published inSolid state ionics Vol. 320; p. 113
Main Authors Liu, Huaixin, Su, Caina, Li, Xuemei, Guo, Yong
Format Journal Article
LanguageEnglish
Published Amsterdam Elsevier BV 01.07.2018
Subjects
Anodes
Anodic coatings
Ball milling
Batteries
Carbon
Cobalt
Crystal structure
Heat conductivity
Lithium
Lithium-ion batteries
Rechargeable batteries
Semiconductor doping
Thickness
Online AccessGet full text

Cover

More Information
Summary:In this work, the Co2+-ion doping and N-doped carbon coating are adopted to improve the intrinsic and apparent electronic conductivities of Li4Ti5O12. This co-modified composite is fabricated through a ball-milling process followed by one-step solid-state reaction. XRD results demonstrate that the doped Co2+ does not destroy the spinel-type structure and it has successfully doped into the crystal structure of Li4Ti5O12. TEM images reveal that the surface of Li4Ti5-xCoxO12 particle is coated by a thin N-doped carbon layer with a thickness of 3–4 nm. Benefiting from the improved conductivity, the obtained composite displays an excellent rate capability and a stable cyclic property. Thus, the Co2+-ion doped and N-doped carbon-coated Li4Ti5O12 anode has great potential for the application of lithium-ion batteries.
ISSN:0167-2738
1872-7689